Hi guys,

Unfortuneately there is a lot of difference of sizing from one manufacturer to another just like some hook manufacturers but Steve is right about the denier per 9000 meters of product. FYI, just got my first order of the fall season from Danville and the spools are marked:

70 (old 6/0)
140 (old 3/0)
210 (old size A or single strand floss)

By the way, Gretchen and I always use 210 denier (size A) unwaxed for our single strand floss because it lays down such a nice smooth body straight out of the bobbin. We tie all of our size #14 & larger Humpies with it then switch to 140 or 70 for the smaller sizes. Take care & ...

Tight Lines - Gretchen & Al Beatty
www.btsflyfishing.com